Superior Performance Nanocomposites from Uniformly Dispersed Octadecylamine Functionalized Multi-Walled Carbon Nanotubes

Ye Chen, Jing Tao, Alaa Ezzeddine, Remi Mahfouz, Abdullah Al-Shahrani, Gasan Alabedi, Niveen M. Khashab

Research output: Contribution to journalArticlepeer-review

Abstract

Polyetherimide (PEI) is a widely applied as engineering plastic in the electronics, aerospace, and automotive industries but the disadvantages of extremely low conductivity, atmospheric moisture absorption, and poor fluidity at high temperature limits its application. Herein, commercial multi-walled carbon nanotubes (MWCNTs) were modified with a long alkyl chain molecule, octadecylamine (ODA), to produce a uniform dispersion in commercial PEI matrices. Both covalent and noncovalent modification of MWCNTs with ODA, were prepared and compared. Modified MWCNTs were incorporated in PEI matrices to fabricate nanocomposite membranes by a simple casting method. Investigating mechanical properties, thermal stability, and conductivity of the polyetherimide (PEI)/MWCNT composites showed a unique combination of properties, such as high electrical conductivity, high mechanical properties, and high thermal stability at a low content of 1.0 wt % loading of ODA modified MWCNTs. Moreover, electrical resistivity decreased around 10 orders of magnitude with only 0.5 wt % of modified MWCNTs.
Original languageEnglish (US)
Pages (from-to)58-76
Number of pages19
JournalC
Volume1
Issue number1
DOIs
StatePublished - Dec 8 2015

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

Fingerprint Dive into the research topics of 'Superior Performance Nanocomposites from Uniformly Dispersed Octadecylamine Functionalized Multi-Walled Carbon Nanotubes'. Together they form a unique fingerprint.

Cite this